Answer:
Step-by-step explanation:
To find square root, you have to find out what number times itself will create the square root value:
means that there has to be a number that times itself to get 4.
2*2=4
Meaning that 2 is the perfect choice for this question.
= 2
Answer:
y=x,y=12x+1
y=4x+4,y=6x
y=x+1,y=x+4
Step-by-step explanation:
The answer to this question is
x = -15 + y
<u>Step-by-step explanation:</u>
To prove:
Identities used:
......(1)
........(2)
.......(3)
Taking the LHS:
Using identity 1:
Using identities 2 and 3:
As, LHS = RHS
Hence proved
Answer:The object will hit the ground after 5 seconds
Step-by-step explanation:
Given height of tower =80 ft
h=-16+64t+80
When the object will hit the ground its height=0
0=-16+64t+80
Multiplying both sides by -1
16t²-64t-80=0
Dividing by 16 both sides
t²-4t-5=0
(t-5)(t+1)=0
t=5 or -1
So t=5 since time cannot be negative
The object will fall after 5 seconds